US8763765B2 - Plunger rod adjuster for compact brake caliper units, having an adjusting lever that abuts on an elastic stop - Google Patents

Plunger rod adjuster for compact brake caliper units, having an adjusting lever that abuts on an elastic stop Download PDF

Info

Publication number
US8763765B2
US8763765B2 US13/576,716 US201113576716A US8763765B2 US 8763765 B2 US8763765 B2 US 8763765B2 US 201113576716 A US201113576716 A US 201113576716A US 8763765 B2 US8763765 B2 US 8763765B2
Authority
US
United States
Prior art keywords
brake
stop
actuator
disk brake
compression spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US13/576,716
Other languages
English (en)
Other versions
US20120305343A1 (en
Inventor
Christian Ebner
Michael Lehneis
Diego Rodriguez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Assigned to KNORR-BREMSE SYSTEME FUR SCHIENENFAHRZEUGE GMBH reassignment KNORR-BREMSE SYSTEME FUR SCHIENENFAHRZEUGE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EBNER, CHRISTIAN, RODRIGUEZ, DIEGO, LEHNEIS, MICHAEL
Publication of US20120305343A1 publication Critical patent/US20120305343A1/en
Application granted granted Critical
Publication of US8763765B2 publication Critical patent/US8763765B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/2245Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members in which the common actuating member acts on two levers carrying the braking members, e.g. tong-type brakes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61HBRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H15/00Wear-compensating mechanisms, e.g. slack adjusters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/38Slack adjusters
    • F16D65/40Slack adjusters mechanical
    • F16D65/52Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/56Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/38Slack adjusters
    • F16D65/40Slack adjusters mechanical
    • F16D65/52Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/56Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
    • F16D65/567Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting on a disc brake

Definitions

  • Disclosed embodiments relate to a disk brake of a rail vehicle, having a brake caliper, wherein the caliper levers of which are coupled at their one end to brake shoes and at their other end to a wear adjuster, wherein the length of the wear adjuster can be set by means of a control mechanism as a function of the stroke of a brake force motor, which control mechanism acts with a control rod on an actuator element of the wear adjuster, wherein the actuator element is mounted with a free wheel in a housing of the wear adjuster and, in an adjustment-free home position, is loaded with a stop section against a stop of the housing by at least one restoring spring element.
  • the wear of the brake linings and of the brake disk is compensated automatically by lengthening or shortening a push rod or pull rod adjuster.
  • the lengthening or shortening of the actuator is carried out by means of a helical gearing as a nut-spindle system.
  • the thread is embodied with a very large pitch. The thread is, therefore, not self-locking. While the one helical gear element, for example the nut, is secured in a rotationally fixed fashion, the other helical gear element, for example the spindle, is rotatably mounted.
  • an actuator lever with a freewheeling mechanism (for example a sleeve freewheeling mechanism) is rotated, which actuator lever in turn rotates the spindle or the nut of the push rod actuator in such a way that the actuator is, for example, lengthened.
  • the adjustment process is ended when the actuator lever abuts against a stop in the adjuster housing or when an axial force which can no longer be overcome by the actuation mechanism of the actuator builds up in the actuator, for example when the linings come to bear on the brake disk.
  • actuation mechanism is described, for example, in EP 0 732 247 B1, which is of the generic type.
  • the nut is secured against rotation in the yoke, and the spindle is rotatably arranged in a guide tube of the adjuster housing.
  • the actuator lever is actuated by means of a push rod with a ball head, which push rod engages in a dome of the actuator lever.
  • the spindle is rotated along by means of the sleeve freewheeling mechanism which is pressed into the actuator lever.
  • the wrap spring freewheeling mechanism slips through in the freewheeling direction.
  • the actuator lever is rotated back again into its home position by means of a restoring spring, in which home position the actuator lever abuts against a rigid stop of the adjuster housing.
  • the sleeve freewheeling mechanism rotates here in the freewheeling direction and in the process the spindle is prevented from rotating along by means of the wrap spring.
  • EP 0 699 846 B1 also describes a disk brake for rail vehicles having a brake caliper and wear adjuster.
  • the actuator element is formed by an actuator sleeve with outer toothing (reference sign 61 in FIGS. 5 and 6 ).
  • a sleeve freewheeling mechanism is pressed into this actuator sleeve.
  • a gearwheel segment by means of which the actuator sleeve can be rotated counter to the force of a restoring spring by means of a lever, is in engagement with the toothing of the actuator sleeve.
  • the nut is entrained by means of the sleeve freewheeling mechanism, as a result of which the push rod adjuster is lengthened.
  • the spindle is mounted in a rotationally fixed fashion in the actuator yoke.
  • the restoring spring rotates the actuator sleeve and therefore also the gearwheel segment into the home position, and in the process the gearwheel segment abuts against a rigid stop on the adjuster housing.
  • a rotation for example of the spindle of the spindle-nut gear mechanism in a direction which shortens the push rod adjuster, is prevented by a wrap spring freewheeling mechanism between the spindle and the adjuster housing.
  • This wrap spring freewheeling mechanism forms, in addition to the freewheeling mechanism of the actuator element, a further or second freewheeling mechanism.
  • the spindle is held in its position when the actuator element is rotated back into its home position by the force of its restoring spring and/or when a large brake application force, and therefore a large torque, acts on the spindle during a braking operation.
  • the torque which acts in the helical gearing has to be partially or even entirely supported via the sleeve freewheeling mechanism of the actuator element if the actuator element is in its home position on the stop of the adjuster housing. It is then not possible to rule out damage to the sleeve freewheeling mechanism and therefore degrading of the function of the wear adjuster.
  • Disclosed embodiments prevent overloading of the wear adjuster in a disk brake of the type mentioned at the beginning.
  • Overloading of the freewheeling mechanism of the actuator element can be prevented if the stop for the actuator element which is located in its home position includes at least one element which is elastic in the stop direction. The stop can then move out in the case of excessively high torque.
  • FIG. 1 shows a plan view of a disk brake of a rail vehicle having a push rod adjuster of a brake caliper as a wear adjuster according to one preferred embodiment of the invention.
  • FIG. 2 shows a partially cut-out view of the brake caliper from FIG. 1 .
  • FIG. 3 shows a cross-sectional illustration of the push rod adjuster of the disk brake from FIG. 1 .
  • FIG. 4 shows a cross-sectional illustration along the line IV-IV from FIG. 3 , showing an actuator element in its home position and mounted with a sleeve freewheeling mechanism in an adjuster housing.
  • FIG. 5 shows the actuator element from FIG. 4 in a position in which it is loaded beyond the home position.
  • FIG. 6 shows an enlarged detail from FIG. 5 .
  • FIG. 7 shows the actuator element from FIG. 4 in a position corresponding to a maximum adjustment travel of the push rod adjuster from FIG. 3 .
  • FIG. 8 shows a cross-sectional illustration of a further embodiment of a push rod adjuster.
  • the actuator element assumes the adjustment-free home position in which it is loaded by the restoring spring element, for example in the case of a release position of the brake or in the case of a brake application position of the brake when there is no requirement for adjustment by the wear adjuster.
  • the at least one elastic element is particularly preferably prestressed, wherein the prestressing force of the elastic element is greater than the force of the at least one restoring spring element which loads the actuator element against the stop.
  • the prestressed elastic element for example a compression spring
  • the torque acting on the actuator element and therefore on the sleeve freewheeling mechanism is then limited to the torque which is exerted by the force applied by the elastic element, for example a spring force.
  • At least one prestressed compression spring is preferably positioned as an elastic element in such a way that the actuator element comes to bear on the compression spring if the actuator element is rotated into its home position by the force of the restoring spring element. Since the prestressing force of the prestressed compression spring is greater than the force of the restoring spring, a defined home position of the actuator element is ensured. On the other hand, the prestressing force of the at least one elastic element is only of such a magnitude that the torque which acts on the freewheeling mechanism of the actuator element when the at least one elastic element is loaded by the actuator element is smaller than the torque which can be tolerated by the freewheeling mechanism of the actuator element.
  • the at least one elastic element is preferably elastically deformed if the force acting as a result of the actuator element is greater than a predefined limiting force, wherein otherwise substantially no elastic deformation of the at least one elastic element takes place.
  • the at least one compression spring can be accommodated in a housing recess in the adjuster housing of the wear adjuster and be supported there by both ends in a prestressed fashion, wherein the at least one compression spring makes contact with the actuator element via a pressure piece which is displaceably mounted in the housing recess.
  • the at least one elastic element that is to say preferably a compression spring
  • a compression spring is held here in the interior of a hollow screw which is screwed into a drilled through-hole in the adjuster housing from the outside.
  • Such an elastic stop can then be easily retrofitted in an already existing wear adjuster by producing a threaded drilled hole in the adjuster housing of the wear adjuster and screwing the hollow screw with the prestressed compression spring and the pressure piece into the threaded drilled hole.
  • FIGS. 1 and 2 show a disk brake 100 for, in particular, laterally displaceable wheel sets of rail vehicles, having an eccentrically driven brake caliper 7 , the two caliper levers 6 , 8 of which are coupled at their one end to brake shoes 15 and at their central regions to a braking force motor 14 .
  • the brake caliper 1 is only partially illustrated as an axial disk.
  • One caliper lever 6 of a brake caliper 7 is coupled, so as to be rotatable about a rotational axis, to a brake housing 2 , at a coupling point 10 which can be considered to be secured in a spatially fixed fashion.
  • the caliper lever 8 on the other side is coupled, so as to be rotatable, to the brake housing 2 at a coupling point 10 by means of a bolt 9 , which bolt 9 is mounted here on the brake housing 2 so as to be rotatable about a rotational axis which is parallel to the rotational axis of the caliper lever 6 , and which bolt 9 has eccentrically axis-parallel bolt projections 11 , on which the caliper lever 8 is mounted.
  • a rotating arm 12 to whose end the piston rod of a brake cylinder is coupled as a force output element 13 of a braking force motor 14 , projects from the bolt 9 .
  • the two caliper levers 6 and 8 are rotatably coupled, at their one ends, to brake shoes 15 which can be pressed against the brake disk 1 , and, at their other ends, to a wear adjuster 16 which connects them, in the exemplary embodiment a push rod adjuster, at coupling points 17 , 18 , 19 and 20 .
  • the push rod adjuster 16 or its adjuster housing is provided for coupling to bearing parts 21 and 22 which each extend between the two cheeks of the caliper levers 6 and 8 .
  • the caliper lever 8 rotates about its coupling point 18 to this brake shoe 15 , wherein the caliper lever 6 is rotated about the coupling point 10 , via the coupling point 20 , the rod 16 and the coupling point 19 , in order for its brake shoe 15 to come to bear against the brake disk 1 .
  • the push rod adjuster 16 increases its length in accordance with the wear of the brake shoes 15 .
  • it has an actuator lever 24 which is mounted, so as to be rotatable about a longitudinal axis 25 of the push rod adjuster 16 , on the bearing part 21 which is assigned to the caliper lever 6 .
  • a pin-shaped stop section 23 of the actuator lever 24 is forced into its home position and against a stop 37 (illustrated in FIGS. 3 to 8 ) by means of a restoring spring 26 which is supported against the bearing part 21 .
  • an extending threaded spindle 27 which is secured against rotation by means of a prestressed toothing 53 , is secured coaxially with respect to the longitudinal axis 25 and in a rotationally fixed and axially non-displaceable fashion in the bearing part 22 .
  • an actuator nut 31 which is screwed to the threaded spindle 27 is secured to the bearing part 21 , such that it can rotate.
  • the actuator nut 31 can be coupled to the bearing part 21 via a one-way rotating coupling or a wrap spring freewheeling mechanism 29 which is equipped with a wrap spring 28 .
  • the actuator nut 31 is driven in the lengthening direction of the push rod adjuster 16 by means of the actuator lever 24 via the sleeve freewheeling mechanism 38 .
  • the basic design and method of functioning of such wear adjusters with two one-way rotating couplings or freewheeling mechanisms are generally known and therefore do not need to be described in detail.
  • other types of wear adjusters for example pull rod adjusters, can also be used, all that is significant is that the wear adjuster has an actuator element which corresponds to the actuator lever 24 .
  • the threaded spindle 27 is mounted in a rotationally fixed fashion, while the actuator nut 31 is mounted in a rotatable fashion, in the adjuster housing 21 , 22 .
  • the wrap spring 28 supports the torque arising during the axial force, from the actuator nut 31 , directly on the adjuster housing or on the bearing part 21 .
  • the tube nut 31 can be rotated into the push rod adjuster in order to perform wear adjustment of the lengthening direction.
  • an embodiment for example according to EP 0 732 247 A2 is also conceivable in which the threaded spindle 27 is rotatably driven by the actuator lever 24 , and the actuator nut 31 is mounted in a rotationally fixed fashion.
  • a control rod 32 whose rounded, rear end bears against the free end of the actuator lever 24 in a bearing seat, extends between the two cheeks of the caliper lever 6 .
  • the control rod 32 is therefore coupled to the activation lever 24 via coupling point 33 , but the activation lever 24 is not shown in FIG. 2 .
  • the control rod 32 In its central region, the control rod 32 is bent out toward the outside of the brake caliper in order to avoid collisions with other components, in particular the braking force motor 14 .
  • the front, likewise rounded, end of the control rod 32 rests in a bearing seat (not shown here) of a rotating lever 35 , as can be seen from FIG. 2 .
  • the two-arm rotating lever 35 is rotatably mounted in its central region at an articulation point 36 and has a free limb 35 a .
  • the method of functioning of the rotating lever 35 in relation to adjoining components is explained in detail in EP 0 732 247 A2.
  • the free end 35 a of the rotating lever 35 is located opposite a lever part 45 at a distance s on the brake disk side in order to form an idle stroke device 44 , as is apparent from FIG. 2 .
  • the lever part 45 is embodied as an extension of the rotating arm 12 . Taking a disk brake which is released with the correct release stroke as basis, the distance s corresponds to the travel which the end of the lever part 45 executes when the two brake shoes 15 come to bear against the brake disk 1 in a way which is still free of brake application force. When the brakes come to bear, the lever part 45 just abuts against the limb 35 a of the rotating lever 35 .
  • the lever part 45 entrains, during its further movement, the limb 35 a until the bearing point of the brake is reached with accompanying rotation of the rotating lever 35 , the control rod 32 being moved in the direction of the actuator lever 24 and in the process activating the push rod adjuster 16 .
  • the brake-disk-side front end of the control rod 32 can therefore be coupled to the force output element 13 of the braking force motor 14 via a coupling point 46 which also includes the rotating lever 35 .
  • the caliper levers on the brake caliper can be coupled centrally to a pull rod adjuster 16 , which can be activated in the shortening direction of the pull rod adjuster by an actuator lever 24 .
  • the wear adjuster 16 can be of any desired design, all that is necessary is to have an actuator lever, as already mentioned.
  • the securing of the brake caliper to a spatially fixed part, ultimately a vehicle frame or chassis frame, can take place at a coupling point other than the coupling point 10 , and the design of a brake caliper unit can possibly be dispensed with, along with the brake housing.
  • the brake caliper 7 can also be applied in a different way, in one of the many known ways, for example by means of a brake cylinder which is coupled directly to the caliper levers 6 , 8 or by means of a lever mechanism.
  • the length of the push rod adjuster can therefore be adjusted as a function of the stroke of the braking force motor by means of a control mechanism which acts with a control rod 32 on the actuator lever 24 of the push rod adjuster 16 .
  • the actuator lever 24 is mounted with a sleeve freewheeling mechanism 38 in the adjuster housing or bearing part 21 of the push rod adjuster 16 , and in an adjustment-free home position the actuator lever 24 is loaded with the pin-shaped stop section 23 against a stop 37 of the bearing part 21 or a cover 21 a of the bearing part 21 by the restoring spring 26 .
  • FIG. 4 in which the actuator lever 24 is located in its spring-loaded home position.
  • the stop 37 for the actuator element 24 which is located in its home position includes at least one element 39 , preferably a compression spring, which is elastic in the stop direction.
  • the compression spring 39 is prestressed, with its prestressing force being greater than the force of the restoring spring 26 which loads the actuator lever 24 against the stop 37 .
  • the compression spring 39 is positioned in the bearing part 21 or the cover 21 a thereof in such a way that the actuator lever 24 comes to bear thereon when it is rotated into its home position by the force of the restoring spring 26 . Since the prestressing force of the prestressed compression spring 39 is greater than the force of the restoring spring 26 , a defined home position of the actuator lever 24 is ensured.
  • the compression spring 39 is accommodated in a, for example cylindrical, recess 40 of the bearing part 21 or cover 21 a thereof of the push rod adjuster 16 and is supported there by both ends in a prestressed fashion, wherein the compression spring 39 makes contact with the actuator lever 24 via a pressure piece 41 which is displaceably mounted in the stop direction in the recess 40 , as is shown best by FIG. 4 and FIG. 6 .
  • the pressure piece 41 is prevented, for example by a circlip 42 inserted into a radially inner annular groove of the recess 40 in the cover 21 a , from exiting the recess 40 and as a result the pressure piece 41 generates the prestress of the compression spring 39 .
  • the pressure piece 41 is stressed axially by the compression spring 39 , which is under prestress, against a stop which is formed in the recess 40 , the stop being formed by the circlip 42 here.
  • the compression spring 39 By reference to FIG. 4 it is easy to see that owing to the cover 21 a the compression spring 39 , the pressure piece 41 and the restoring spring 26 are easy to mount.
  • the restoring spring 26 secures the actuator lever 24 in its home position.
  • the actuator lever 24 bears here against the pressure piece 41 which is displaceably mounted in the bearing part 21 in the recess 40 , configured for example as a drilled blind hole, which actuator lever 24 can be moved counter to the prestressed compression spring 39 .
  • a further stop 43 is provided in the bearing part 21 or the cover 21 a thereof, against which stop 43 the actuator lever 24 abuts with a further pin-shaped stop section 49 counter to the effect of the restoring spring 26 if the push rod adjuster 16 adjusts by a maximum adjustment travel. This situation is shown in FIG. 7 .
  • the compression spring 39 is overridden, as shown in FIG. 5 and FIG. 6 .
  • the torque acting on the actuator lever 24 , and therefore on the sleeve freewheeling mechanism 38 is then limited to the torque or the force which is applied to the sleeve freewheeling mechanism 38 by the compression spring 39 .
  • the pressure piece 41 is, as shown in FIG. 6 , moved by a certain amount into the recess or drilled blind hole 40 and lifts off from the circlip 42 , which otherwise, in the home position, forms the axial stop for the pressure piece 42 .
  • wrap spring freewheeling mechanism 29 therefore permits a certain rotation of the tube nut 31 in the shortening direction because of elastic stretching under load, the actuator lever 24 can follow this rotation counter to the force of the compression spring, and in the process the pressure piece 41 moves linearly (see FIG. 6 ).
  • the sleeve freewheeling mechanism 38 is loaded in the process only by the torque which results from the spring force of the compression spring 39 and the distance between its line of action and the rotational axis of the actuator nut 31 , which is coaxial to the longitudinal axis 25 .
  • the compression spring 39 and the pressure piece 41 are held in the interior of a hollow screw 51 which is screwed into a drilled through-hole 52 which is formed as a threaded drilled hole in the bearing part 21 from the outside.
  • a hollow screw 51 which is screwed into a drilled through-hole 52 which is formed as a threaded drilled hole in the bearing part 21 from the outside.
  • Such an elastic stop 37 can then be easily retrofitted in an already existing push rod adjuster 16 . Otherwise, the design and the method of functioning of the elastic stop 37 are as described in the preceding exemplary embodiment.
  • the embodiment according to FIG. 8 eliminates the need for the cover 21 a in the embodiment according to FIG. 4 to FIG. 6 .
  • the elastic element can be embodied as any desired elastic element, instead of as a compression spring 39 .
  • a conical spring or as an elastomer which is vulcanized to the adjuster housing or bearing part 21 or arranged or mounted separately is conceivable.
  • an embodiment of the elastic element as a section which is in one piece with the bearing part 21 and which, owing to a particular geometric configuration, has a higher degree of elasticity than the regions of the bearing part 21 adjoining it, is conceivable.
  • the relatively high resilience or elasticity does not result from a lower material rigidity but rather from a geometrically induced lower rigidity of the stop 37 compared to the adjoining regions of the bearing part 21 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
US13/576,716 2010-02-02 2011-01-27 Plunger rod adjuster for compact brake caliper units, having an adjusting lever that abuts on an elastic stop Expired - Fee Related US8763765B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102010006748 2010-02-02
DE102010006748.2 2010-02-02
DE102010006748 2010-02-02
PCT/EP2011/051099 WO2011095424A2 (de) 2010-02-02 2011-01-27 Druckstangensteller für kompakt-bremszangeneinheiten mit gegen einen elastischen anschlag anschlagbarem stellhebel

Publications (2)

Publication Number Publication Date
US20120305343A1 US20120305343A1 (en) 2012-12-06
US8763765B2 true US8763765B2 (en) 2014-07-01

Family

ID=44259986

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/576,716 Expired - Fee Related US8763765B2 (en) 2010-02-02 2011-01-27 Plunger rod adjuster for compact brake caliper units, having an adjusting lever that abuts on an elastic stop

Country Status (9)

Country Link
US (1) US8763765B2 (de)
EP (1) EP2531742B1 (de)
JP (1) JP5864442B2 (de)
KR (1) KR101512221B1 (de)
CN (1) CN102753853B (de)
DE (1) DE102011009540A1 (de)
HK (1) HK1177779A1 (de)
RU (1) RU2547942C2 (de)
WO (1) WO2011095424A2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150021126A1 (en) * 2011-12-14 2015-01-22 Nippon Steel & Sumitomo Metal Corporation Caliper brake device for railway vehicles
US20160137213A1 (en) * 2013-06-19 2016-05-19 Nippon Steel & Sumitomo Metal Corporation Caliper brake device for railway vehicle
US20170106882A1 (en) * 2014-08-18 2017-04-20 Kyb Corporation Brake apparatus

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014006291B3 (de) * 2014-04-26 2015-09-03 Audi Ag Rotationsdämpfer
CN104260748B (zh) * 2014-10-20 2017-06-13 青岛思锐科技有限公司 轨道机车车辆制动夹钳单元闸片间隙调整器
CN104879405A (zh) * 2014-11-18 2015-09-02 四川制动科技股份有限公司 一种闸调器
JP6543149B2 (ja) * 2015-09-25 2019-07-10 Kyb株式会社 ブレーキ装置
DE102015219058B3 (de) * 2015-09-29 2017-04-13 Kes Keschwari Electronic Systems Gmbh & Co. Kg Bremszylinder mit integriertem Verschleißnachsteller für Schienenfahrzeuge
CN108253050B (zh) * 2018-01-25 2019-05-21 西北工业大学 一种旋转机械定位锁定机构
DE102019101342B4 (de) * 2019-01-18 2020-07-30 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Verschleißnachsteller einer Kompakt-Bremszangeneinheit, und Kompakt-Bremszangeneinheit mit einem solchen Verschleißnachsteller
US11306787B2 (en) * 2020-03-27 2022-04-19 Chang Hui Lin Mechanical multi-rod disc brake
JP7469141B2 (ja) 2020-05-26 2024-04-16 ナブテスコ株式会社 ブレーキ装置及びブレーキ装置用の隙間調整機構
JP7444757B2 (ja) 2020-10-28 2024-03-06 ナブテスコ株式会社 ブレーキキャリパ装置
CN115158392B (zh) * 2022-06-10 2023-07-11 杭州申昊科技股份有限公司 一种基于轨道探伤车驱动装置的复位机构
DE102022208094A1 (de) 2022-08-03 2024-02-08 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Nachstellermodul für eine Bremszange einer Fahrzeugbremse, Fahrzeugbremse mit einem solchen Nachstellermodul und Verfahren zum Notlösen des Nachstellermoduls

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018140A (en) * 1974-06-17 1977-04-19 General Signal Corporation Hydraulic disc brake actuator
EP0121815A1 (de) 1983-03-15 1984-10-17 Knorr-Bremse Ag Selbsttätige, sofortwirkende Nachstellvorrichtung für den Anlegehub von Bremsgestängen von insbesondere Schienenfahrzeugen
EP0699846A2 (de) 1994-09-02 1996-03-06 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Bremsgestänge für Fahrzeuge, insbesondere Schienenfahrzeuge
US5501305A (en) * 1993-09-08 1996-03-26 Knorr-Bremse Ag Device for generating a reversible working stroke
EP0732247A2 (de) 1995-03-16 1996-09-18 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Scheibenbremse für Schienenfahrzeuge
US5813499A (en) * 1994-09-02 1998-09-29 Knorr-Bremse Systeme Fur Schienenfahrzeuge Gmbh Brake caliper unit for vehicle and especially rail vehicle disc brakes
WO2003082651A1 (de) 2002-04-03 2003-10-09 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Verfahren und vorrichtung zur ansteuerung einer elektrisch betätigten verschleissnachstelleinrichtung
US6722477B1 (en) * 1999-09-23 2004-04-20 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Brake actuator
US20060070830A1 (en) * 2002-04-03 2006-04-06 Erich Fuderer Brake application device comprising an electrically actuated wear adjuster

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54138964A (en) * 1978-04-20 1979-10-27 Akebono Brake Ind Co Ltd Improvements in brake assembling part for brake motor
JP2560597Y2 (ja) * 1992-12-28 1998-01-26 山九株式会社 ラチェットホイール回転装置
RU2044668C1 (ru) * 1993-04-02 1995-09-27 Олег Олегович Вейтцель Дисковый тормоз скоростного подвижного состава
DE10214671B4 (de) 2002-04-03 2006-08-24 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Bremszuspanneinrichtung mit elektrisch betätigter Verschleißnachstell- und Not- und Hilfslöseeinrichtung
CN100455840C (zh) * 2004-04-07 2009-01-28 马德拉斯机器制造私人有限公司 用于调整车辆制动系统的制动衬片和制动鼓之间间隙的制动间隙自动调整器
WO2007116104A1 (es) 2006-04-07 2007-10-18 Rothenberger, S.A. Tenaza
JP2009162289A (ja) * 2008-01-04 2009-07-23 Akebono Brake Ind Co Ltd ディスクブレーキ装置
CN101216083B (zh) * 2008-01-14 2010-09-08 玉环凯凌集团有限公司 一种带驻车制动的制动钳

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018140A (en) * 1974-06-17 1977-04-19 General Signal Corporation Hydraulic disc brake actuator
EP0121815A1 (de) 1983-03-15 1984-10-17 Knorr-Bremse Ag Selbsttätige, sofortwirkende Nachstellvorrichtung für den Anlegehub von Bremsgestängen von insbesondere Schienenfahrzeugen
US5501305A (en) * 1993-09-08 1996-03-26 Knorr-Bremse Ag Device for generating a reversible working stroke
EP0699846A2 (de) 1994-09-02 1996-03-06 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Bremsgestänge für Fahrzeuge, insbesondere Schienenfahrzeuge
US5813499A (en) * 1994-09-02 1998-09-29 Knorr-Bremse Systeme Fur Schienenfahrzeuge Gmbh Brake caliper unit for vehicle and especially rail vehicle disc brakes
EP0732247A2 (de) 1995-03-16 1996-09-18 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Scheibenbremse für Schienenfahrzeuge
US6722477B1 (en) * 1999-09-23 2004-04-20 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Brake actuator
WO2003082651A1 (de) 2002-04-03 2003-10-09 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Verfahren und vorrichtung zur ansteuerung einer elektrisch betätigten verschleissnachstelleinrichtung
US20060070830A1 (en) * 2002-04-03 2006-04-06 Erich Fuderer Brake application device comprising an electrically actuated wear adjuster

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
English Translation of Notification Concerning Transmittal of International Preliminary Report on Patentability and Written Opinion of the International Search Authority for International Patent Application No. PCT/EP2011/051099, dated Jan. 27, 2011.
Notification Concerning Transmittal of International Preliminary Report on Patentability and Written Opinion of the International Search Authority for International Patent Application No. PCT/EP2011/051099, dated Jan. 27, 2011.
Search Report for International Patent Application No. PCT/EP2011/051099; Jul. 27, 2011.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150021126A1 (en) * 2011-12-14 2015-01-22 Nippon Steel & Sumitomo Metal Corporation Caliper brake device for railway vehicles
US9371078B2 (en) * 2011-12-14 2016-06-21 Nippon Steel & Sumitomo Metal Corporation Caliper brake device for railway vehicles
US20160137213A1 (en) * 2013-06-19 2016-05-19 Nippon Steel & Sumitomo Metal Corporation Caliper brake device for railway vehicle
US9522684B2 (en) * 2013-06-19 2016-12-20 Nippon Steel & Sumitomo Metal Corporation Caliper brake device for railway vehicle
US20170106882A1 (en) * 2014-08-18 2017-04-20 Kyb Corporation Brake apparatus
US9932051B2 (en) * 2014-08-18 2018-04-03 Kyb Corporation Brake apparatus

Also Published As

Publication number Publication date
JP2013519049A (ja) 2013-05-23
HK1177779A1 (en) 2013-08-30
US20120305343A1 (en) 2012-12-06
WO2011095424A3 (de) 2011-10-13
EP2531742B1 (de) 2014-12-03
WO2011095424A2 (de) 2011-08-11
EP2531742A2 (de) 2012-12-12
RU2547942C2 (ru) 2015-04-10
DE102011009540A1 (de) 2011-08-04
CN102753853A (zh) 2012-10-24
KR101512221B1 (ko) 2015-04-14
KR20120117917A (ko) 2012-10-24
RU2012137297A (ru) 2014-03-10
CN102753853B (zh) 2015-05-13
JP5864442B2 (ja) 2016-02-17

Similar Documents

Publication Publication Date Title
US8763765B2 (en) Plunger rod adjuster for compact brake caliper units, having an adjusting lever that abuts on an elastic stop
US8763766B2 (en) Plunger rod adjuster for compact brake caliper units, having a screw connection element supported directly on the adjuster housing
US8684146B2 (en) Disc brake adjusting device with a torque dependent coupling
US5327999A (en) Brake lever for an S-cam automotive drum brake
AU2005270423B2 (en) Adjusting device for a pneumatic disc brake
US8739945B2 (en) Disc brake adjusting device having an output side coupling ring with a defined working rotational angle
US9989117B2 (en) Disc brake having a bidirectional wear adjustment device and bidirectional wear adjustment device
JP6004491B2 (ja) 車両用空気圧車輪制動機
CN110088496B (zh) 盘式制动器和制动器致动机构
GB2332027A (en) Wear-adjusting device for a disc brake for a motor vehicle
US20170175837A1 (en) Vehicle Disk Brake
US20080217125A1 (en) Adjusting Apparatus for a Pneumatically Actuated Disc Brake
US10801564B2 (en) Disk brake comprising a quick contact device
JPS61175330A (ja) レール車両用デイスクブレーキのためのブレーキリンク機構
KR20220013196A (ko) 전기 기계식 브레이크 및 이의 작동방법
US7614483B2 (en) Adjusting device for pneumatically actuatable disk brakes and disk brakes
US3378109A (en) Disc brake assembly
CN110831829B (zh) 包括紧急脱开设备的弹簧储能器制动缸
CN111457039B (zh) 紧凑型制动钳单元的磨损补偿调节器和紧凑型制动钳单元
CN112867877B (zh) 盘式制动器
CN102039912B (zh) 轨道车辆单元制动器闸瓦间隙调整装置
JPH0255653B2 (de)

Legal Events

Date Code Title Description
AS Assignment

Owner name: KNORR-BREMSE SYSTEME FUR SCHIENENFAHRZEUGE GMBH, G

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EBNER, CHRISTIAN;LEHNEIS, MICHAEL;RODRIGUEZ, DIEGO;SIGNING DATES FROM 20120801 TO 20120806;REEL/FRAME:028788/0357

FEPP Fee payment procedure

Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.)

LAPS Lapse for failure to pay maintenance fees

Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.)

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362